ANSWER
4022
EXPLANATION
To find the fish population of the lake in 18 years, we have to replace t by 18 into the function,
[tex]P(18)=1100\ln (2\cdot18+e)[/tex][tex]P(18)=1100\ln (36+e)[/tex]
And since this involves Euler's constant e and a natural logarithm, we have to do this calculation in the calculator. The answer, to the nearest whole number, is 4022.
